Dados do Trabalho

Título

Profile of respiratory muscle strength in resistant hypertensive patients with obstructive sleep apnea.

Introdução

Resistant Arterial Hypertension (RAH) is defined by the finding of casual blood pressure values in the office persistently above the control goals in a patient using at least three classes of antihypertensive drugs, The Obstructive Sleep Apnea (OSA) is characterized by recurrent episodes of partial or complete upper airway obstruction during sleep. During episodes of airway obstruction and hypopneas during sleep, the respiratory muscles may present with abnormalities due to repeated efforts during breathing.

Objetivo

To determine the profile of respiratory muscle strength in resistant hypertensive patients with obstructive sleep apnea.

Métodos

This is a randomized clinical study, in which a cohort of RAH diagnosed by the Arterial Hypertension Program with OSA and AHI > 15 by polysomnography in a University Hospital was evaluated. muscle inspiratory pressure (MIP) and expiratory (MEP) measurements were performed using an analog manocacuometer, which reflects respiratory muscle strength. MIP and MEP measurements were performed according to the American Thoracic Society (ATS). All patients agreed and signed the Free and Informed Consent Term, with a protocol approved by the Ethics and Research Committee of the Institution.

Resultados

Ninety-four patients (41 men/53 women), aged 61.1±7.8 years and body mass index of 32.8±5.1 kg/m2 were evaluated. For both procedures, five measurements were performed and the one with the highest value was selected. The mean of the measured values of MIP. was 48.9±23.6 and MEP. was 66.6±32.9.

Conclusões

In the evaluated sample, the MIP and MEP values were below the reference values, indicating a decrease in respiratory muscle strength in this population.

Palavras -chave

Obstructive sleep apnea; Respiratory muscle strength; Resistant arterial hypertension.